LoadVars class is the most powerfull class for communicating with server-side technologies and to load external data from text files. It was introduced in Flash Player 6 to provide a cleaner, much more object-oriented interface for the common task of exchanging data with a server and text files.
This tutorial covers variables and their ever day applications in Flash ActionScript. Written assuming no former programming knowledge the tutorial covers variables from the ground up, providing practical examples and even tests. ActionScript.org is an award winning resource site packed with free tutorials such as this one.
This tutorial covers 2 new cool features which are unique to Flash 6 and above. These are setMask and setInterval. This demo could not have been possible without these features.. or at least without setMask which really is the more interesting one of the two, for this example's purposes.